ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 52

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

ST10R272L - ELECTRICAL CHARACTERISTICS
16.3.3
52/77
1
V
ALE cycle time = 6 TCL + 2
Parameter
ALE high time
Address (P1, P4), BHE
setup to ALE
Address (P0) setup to ALE
Address hold after ALE
ALE falling edge to RD,
WR (with RW-delay)
ALE falling edge to RD,
WR (no RW-delay)
Address float after RD,
(with RW-delay)
Address float after RD,
(no RW-delay)
RD, WR low time
(with RW-delay)
RD, WR low time
RD to valid data in
RD to valid data in
ALE low to valid data in
Address to valid data in
(no RW-delay)
(with RW-delay)
(no RW-delay)
DD
= 3.3 V
Multiplexed Bus
1
0.3 V
1)
V
SS
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
A
5
6
6m
7
8
9
10
11
12
13
14
15
16
17
+
= 0 V
t
C
CC 7 +
CC 3 +
CC 5 +
CC 5 +
CC 5 +
CC -5 +
CC –
CC –
CC 13 +
CC 23 +
SR –
SR –
SR –
SR –
+
Table 17 Multiplexed bus
t
F
(60 ns at 50-MHz CPU clock without waitstates)
Max. CPU Clock
= 50 MHz
min.
t
t
t
t
t
A
A
A
A
A
t
t
t
A
C
C
T
max.
–
–
–
–
–
–
5
15
–
–
5 +
15 +
15
+
20
+ 2
A
1
= -40 to +85 °C
t
1
A
t
t
A
C
+
t
C
+
t
C
t
C
Variable CPU Clock
1/2TCL = 1 to 50 MHz
min.
TCL - 3 +
TCL - 7 +
TCL - 5 +
TCL - 5 +
TCL - 5 +
-5 +
–
–
2TCL - 7+
3TCL - 7 +
–
–
–
–
t
A
t
t
t
t
t
A
A
A
A
A
t
C
t
C
C
L
= 50 pF
max.
–
–
–
–
–
–
5
TCL + 5
–
–
2TCL - 15
+
3TCL - 15
+
3TCL - 15
+
4TCL - 20
+ 2
1
t
t
t
C
C
A
t
A
+
+
t
C
t
1
C
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns